Hi Aspirant,
Sorry to inform you but it is not possible for you to do Polytechnic without Mathematics in class 10th. The eligibility criteria suggests that generally Mathematics, Science & English in class 10th are considered to be compulsory subjects to apply for diploma courses.
For more information regarding the Polytechnic refer the link below,
https://engineering.careers360.com/articles/polytechnic
Hope this helps.
All the best!!
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